When an interrupted spell backfires onto Celestia, Luna, and their mixed entourage, they are sucked into a strange land which Celestia and Luna recognise all to well - the land and time of Discord's rule, the place of Celestia and Luna's childhood. Even worse, they run a high risk of meeting themselves as fillies. Rather than break the space-time continuum and risk destroying the world as they know it, the group must begin a long and perilous journey to return home - and as soon as they possibly can, before the world can begin to miss the Ones Who Bring the Day and Night.

See this blog for reasons as to why this is cancelled. Anyone asking me to finish it still can, and I will try my best to oblige!